20 West 27th Street, Manhattan
Co-op · 5 units · built c. 1911 · Block 828, Lot 60.
Building permits
- Alteration, filed May 17, 2022, estimated cost $30K, described as “Plumbing work in conjunction with Dobnow Application M00725670-I1”
- Alteration, filed Apr 26, 2022, estimated cost $80K, described as “Interior alteration on the fifth floor apartment and new condenser on the roof. Two new bedrooms, new bathroom, new lighting, replacement of existing rear windows & new kitchen.”
- Alteration, filed Dec 7, 2020, estimated cost $75K, described as “Filing as per plans for the installation of 2 new sprinkler heads and relocating 1 sprinkler head serving egress stairwell on 6th floor and roof. Also installing 1 new sprinkler booster pump and 1 new jockey pump.”
- Alteration, filed Sep 4, 2019, estimated cost $35K, described as “Structural steel and cmu work at roof”
Property taxes
- Assessment
- $2,958,300
- 2026–27 tax
- $111,853
- Market value (city estimate)
- $6,574,000
- Taxable value
- $899,148
- Assessed land
- $715,500
- Assessed improvements
- $2,242,800
Zoning
M1-8A/R11: floor area ratio 4.28 built, 12.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Nov 18, 2021: $1,850,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Madison Square North Historic District (Historic District). 5 Landmarks Preservation Commission permits are on file.
Board and land use applications
- Midtown South Mixed-Use Plan (MSMX) (City Planning 2024M0142): Zoning map change, Zoning text change, Completed, filed Jan 16, 2025, decided Aug 14, 2025. The Department of City Planning is seeking a Zoning Map amendment from M1-6 and M1-6D to M1-9A/R12, M1-8A/R12, and M1-8A/R11 and a Zoning Text amendment to facilitate the development of housing and support critical economic activity across…
- Flatiron BID Expansion (City Planning 2021M0260): Business improvement district, Completed, filed Nov 30, 2020, decided May 19, 2021. An application from the Small Business Services (SBS) on behalf of the Flatiron Business Improvement District (BID) to modify the existing plan and expand the BID in Community Districts 4 and 5 of Manhattan.
- 20 W27TH ST (City Planning P1983M0751): Completed, decided Jul 9, 1984. CHAIRMAN CERT(ZR15-021)FOR LOFT CONVERSION
- 20 W27TH ST (City Planning P1980M0733): Completed, decided May 18, 1982. CONVERTING MFG LOFT INTO RESIDENTIAL USE